c++ - Getting the text from a QTextEdit inside a QWidget -

c++ - Getting the text from a QTextEdit inside a QWidget -

i have qtabwidget 'tw' add together tabs this:

qwidget *newtab = new qwidget(tw); tw->addtab(newtab, "tab name"); qtextedit *te = new qtextedit(); te->settext("hello world"); qvboxlayout *vbox = new qvboxlayout(); vbox->addwidget(te); newtab->setlayout(vbox);

how can text within qtextedit tab in foreground (like when click button i'd re-create text visible tab clipboard or smtg that). don't know how handle of qtextedit.

you need maintain track of text edits manually. either through storing pointer them in parent widget, or create utilize of lookup table, e.g. qhash:

assuming have class myclass contains code posted in question:

add fellow member variable this:

class qtextedit; // so-called "forward declaration" saves // #include. google if want know more ;-) class myclass { // ... private: qhash< int, qtextedit* > _texteditpertabpage; };

this variable makes possible store (and find) text edit index (0, 1, 2, ...) of tab pages.

you add together function this:

void myclass::addtab( qwidget* tabwidget, const qstring& tabname, const qstring& text ) { // create text edit qtextedit* textedit = new qtextedit(); textedit->settext( text ); // create layout contains text edit qvboxlayout* layout = new qvboxlayout(); layout->addwidget( textedit ); // create parent widget layout qwidget* newtab = new qwidget( tabwidget ); newtab->setlayout( layout ); // add together widget new tab int tabindex = tabwidget->addtab( newtab, tabname ); // remember text edit widget _texteditpertabpage.insert( tabindex, textedit ); }

and retrieve pointer on qtextedit this:

qtextedit* textedit = _texteditpertabpage.value( tabwidget->currentindex() );

this code has couple of limitations, e.g. have create sure utilize own myclass::addtab function , don't access qtabwidget::addtab outside of function. if phone call qtabwidget::removetab, qhash may no longer point proper qtextedits.

c++ qt qt4